Illustrations - NSF Caulking Instructions • 31
ILLUSTRATIONS
FIGURE 14
NSF Caulking Instructions
Refer back to page 6
SURFACES TO BE CAULKED MUST BE CLEAN,
DRY, AND FREE OF FROST (ABOVE 40ºF).
Note: NSF sealant must be applied with no gaps to seal the
case interior properly.
1. Cases must be properly caulked and joined before NSF
caulking. Avoid using excessive Butyl caulk to prevent it from
coming out of the joints because Butyl and silicone sealants
will not mix. That will affect adhesion.
2. Apply NSF-approved sealant (silicone-based) in small,
smooth beads where indicated by the dashed lines in the
drawing. Sealant must be added between cases at case
joints, between a case and an end panel, and between all
access holes and cut-outs in the case end frame. Do not thin
or feather excessively, as that may affect adhesion.
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